First acid dissociation at an aqueous H2SO4 interface with sum frequency generation spectroscopy |
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| Authors: | Miyamae Takayuki Morita Akihiro Ouchi Yukio |
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| Institution: | Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8565, Japan. t-miyamae@aist.go.jp |
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| Abstract: | The vibrational sum frequency generation (SFG) spectra of the air-liquid interface of H2SO4-H2O solutions over a wide range of concentrations are measured in the SO stretching region (1000-1300 cm(-1)). The analogy of the concentration dependence of Raman and SFG is indicative of a nearly identical behavior of the first acid dissociation at the air-liquid interface as in the bulk. |
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